`gps_minder`
===

This file listens on the GPS `tty` interface (`/dev/ttyGPS`) for GPS
messages and sends messages to the Inter Process Communications (IPC) hub
with GPS updates.

Note that the `/dev/ttyGPS` should be setup system wide before this program is run.
This is done by the Popufare system by creating a symbolic link to the appropriate
underlying `tty` device that the GPS is connected to.

`gps_minder` listens for `GPRMC` and `GPGGA` NMEA messages to update it's GPS position.

Once received, the `gps_minder` will send a `GPS_MESSAGE` to the IPC so other services
can get the GPS update.

GPS updates will only occur once at least 3 satellites have been found.

Building
---

```
$ ./buildit_native.sh
```

---

| Value | Description |
|---|---|
| `/dev/ttyGPS` | Serial interface (`8N1`, `115200`) to listen for GPS NMEA message updates |
